Lung_Cancer

Lung Cancer Smoking affects a person\'s health in many ways, having both immediate and long term effects. It is a serious addiction, caused by the drug nicotine. Once inhaled, nicotine reaches the brain almost immediately (within seven seconds). Milligram for milligram, the nicotine contained in all cigarette smoke is more potent than heroin. Humans have been using tobacco for 1,000 years or so. Until about 100 years ago, most tobacco use was in the form of pipe tobacco, cigars, chewing tobacco and snuff. Those who smoked cigarettes had to roll their own, using loose tobacco. Then, in 1881, the cigarette-rolling machine was invented and smokers went from consuming 40 cigarettes a year on average to over 12,000 each year. Risk from tobacco smoke is not limited to the smoker. It has been estimated that exposure to environmental tobacco smoke (ETS) increases the risk of lung cancer by about 30% (about 3,000 cases a year in the USA). Non-smoking infants and children who are chronically exposed to in utero and environmental smoke have an increased risk of respiratory diseases, malignancy, and other health problems that result in increased hospitalization and days lost from school. Non-smoking adults who are exposed smoking, smoke, disease, cancer, tobacco, heart, risk, million, lung, deaths, about, problems, years, rate, premature, nicotine, cause, blood, studies, smokers, smoker, second-hand, respiratory, likely, health, diseases, chronic, cardiovascular, breathing, year, wrinkling, stroke, pressure, over, long